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Finding the Fourth Proportional to 8,508.68, 12,758.02 and 3,308.44

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Solution

The fourth proportional to 8,508.68, 12,758.02 and 3,308.44 is: 4,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.68 : 12,758.02 = 3,308.44 : x
  2. Step 2: Convert to fraction form
    8,508.68/12,758.02 = 3,308.44/x
  3. Step 3: Cross multiply
    8,508.68x = 12,758.02 × 3,308.44
  4. Step 4: Simplify right side
    8,508.68x = 42,209,143.69
  5. Step 5: Solve for x
    x = 42,209,143.69/8,508.68
  6. Step 6: Final answer
    x = 4,960.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.